error message color in symfony

i want to change the color of errors that occour when a form is submitted by users, i set

.errorMessage{ color:red }

in main.css, but it dosn't work :(, is there any option for error color in widgets? i google it but i can't find answer, my symfony开发者_StackOverflow社区 version is 1.4.11, and another question is i want to have captcha in my forms, i write this code for that

 $this->widgetSchema['captcha'] = new sfWidgetFormReCaptcha(array(
      'public_key' => sfConfig::get('app_recaptcha_public_key')
    ));

    $this->validatorSchema['captcha'] = new sfValidatorReCaptcha(array(
      'private_key' => sfConfig::get('app_recaptcha_private_key')
    ));

but when i echo the form this error occour:

 Captcha Input error: k: Format of site key was invalid 

You need to theme it in template file

<?php foreach($form->getErrorSchema()->getErrors() as $name => $error): ?>
<div class="errorMessage <?php echo $name; ?>"><?php echo $error; ?></div>
<?php endforeach; ?>

You will get something like that: